Shimano GRX RX820 2x12 12-Speed Groupset Variant:42/31 170mm 11-34T MODEL NO SM-RT64 SERIES SHIMANO

MODEL NO SM-RT64 SERIES SHIMANO DEORE M610 Series CENTER LOCK ✔ Outside diameter_140 mm X (NEW)

CE EN 1078 Compliant

Shell : Glass Fiber Reinforced

Threaded bottom bracket shell width (mm)_73 ✔

Shimano GRX RX820 2x12 12-Speed Groupset Variant:42/31 170mm 11-34T MODEL NO SM-RT64 SERIES SHIMANOShimano GRX RX820 2x12 12 Speed Groupset 11 34T 48x31x170mm Includes the following 12 Speed GRX Components: Shimano GRX FC RX820 2 Gravel Crankset 2x12 speed Shimano GRX FD RX820 Front Derailleur 2x12 speed Shimano GRX RD RX820 Rear Derailleur SHIMANO SHADOW RD+ 12 speed Shimano GRX ST RX820 L Hydraulic Disc Brake DUAL CONTROL LEVER 12 speed Shimano GRX ST RX820 R Hydraulic Disc Brake DUAL CONTROL LEVER 12 speed Shimano Ultegra CS R8100 12 12 speed